int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt);
-int ff_fill_line_with_color(uint8_t *line[4], int pixel_step[4], int w,
- uint8_t dst_color[4],
- enum AVPixelFormat pix_fmt, uint8_t rgba_color[4],
- int *is_packed_rgba, uint8_t rgba_map[4]);
-
-void ff_draw_rectangle(uint8_t *dst[4], int dst_linesize[4],
- uint8_t *src[4], int pixelstep[4],
- int hsub, int vsub, int x, int y, int w, int h);
-
-void ff_copy_rectangle(uint8_t *dst[4], int dst_linesize[4],
- uint8_t *src[4], int src_linesize[4], int pixelstep[4],
- int hsub, int vsub, int x, int y, int y2, int w, int h);
-
#define MAX_PLANES 4
typedef struct FFDrawContext {